Method and device for allocating resources, user equipment, base station and readable storage medium

ABSTRACT

Method and device for allocating resources, UE, base station and readable storage mediums are provided. The method includes: after initial cell selection or cell reselection is completed in an idle state, acquiring position information of a first type of RB; acquiring reference point offset indication information from a base station, wherein the reference point offset indication information includes a frequency domain offset N of a reference point relative to a specified RB which is one of the first type of RB; calculating a frequency domain position of the reference point based on the position information of the first type of RB and the reference point offset indication information; when receiving scheduling information from the base station, determining an RB for receiving PDSCH based on the frequency domain position of the reference point and resource allocation information included in the scheduling information. Resource allocation efficiency in idle state is improved.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority under 35 U.S.C. § 119 to Chinesepatent application No. 201710685505.X, filed on Aug. 11, 2017, and theentire disclosure of which is incorporated herein by reference.

TECHNICAL FIELD

The present disclosure generally relates to communication technologyfield, and more particularly, to method and device for allocatingresources, a user equipment, a base station and readable storagemediums.

BACKGROUND

In a 5G system, a base station transmits a synchronization signal blockon an initial access sub-band in a large bandwidth. For example, asynchronization signal block is transmitted on a sub-band with abandwith of 5 MHz within a system bandwidth of 100 MHz. A first ControlResource Set (CORESET) is transmitted on a first sub-band of the largebandwidth, and a second CORESET is transmitted on a second sub-band ofthe large bandwidth. By a Physical Downlink Control Channel (PDCCH) inthe first CORESET or the second CORESET, the base station schedules aUser Equipment (UE) to receive common control messages on an indicatedPhysical Downlink Shared channel (PDSCH) to acquire Remaining MinimumSystem Information (RMSI) or paging messages.

Scheduling information in the PDCCH includes information of resourceallocation, so as to inform the UE on which Resource Blocks (RBs) toreceive the PDSCH.

However, in an idle state, the base station may not need to indicate asystem bandwidth to the UE, thus the UE cannot know the system bandwidthof the base station. The base station cannot know bandwidth capabilityof the UE in the idle state as well as different UEs have differentbandwidth capabilities. As the system bandwidth of a single carrier in a5G system increases significantly, in the idle state, existing resourceallocation methods cannot adapt to the 5G system currently due to lowresource allocation efficiency.

SUMMARY

By embodiments of the present disclosure, resource allocation efficiencyof a system in an idle state may be improved.

In an embodiment of the present disclosure, a method for allocatingresources is provided, including: after initial cell selection or cellreselection is completed in an idle state, acquiring positioninformation of a first type of resource block; acquiring reference pointoffset indication information from a base station, wherein the referencepoint offset indication information includes a frequency domain offset Nof a reference point relative to a specified resource block, thespecified resource block being one of the first type of resource block,and N being an integer; calculating a frequency domain position of thereference point based on the position information of the first type ofresource block and the reference point offset indication information;and when receiving scheduling information from the base station,determining a resource block for receiving a physical downlink sharedchannel based on the frequency domain position of the reference pointand resource allocation information included in the schedulinginformation.

Optionally, the frequency domain offset N is indicated by acorresponding index S, and a bit number of the index S is smaller thanor equal to a bit number of the frequency domain offset N.

Optionally, the reference point corresponds to a start resource block,and determining a resource block for receiving a physical downlinkshared channel based on the frequency domain position of the referencepoint and resource allocation information included in the schedulinginformation includes: determining the resource block for receiving thephysical downlink shared channel based on the resource allocationinformation included in the scheduling information by taking the startresource block corresponding to the reference point as a start resourceblock for counting resource blocks.

Optionally, the first type of resource block belongs to asynchronization signal block or a control resource set.

Optionally, when the first type of resource block belongs to asynchronization signal block, the specified resource block is aspecified resource block in a synchronization signal or in a physicalbroadcast channel.

Optionally, when the specified resource block is a specified resourceblock in the synchronization signal block, the specified resource blockis one of the following resource blocks: a resource block with a minimumindex in the synchronization signal; a resource block with a maximumindex in the synchronization signal; or a resource block with any indexbetween the minimum index and the maximum index in the synchronizationsignal.

Optionally, when the specified resource block is a specified resourceblock in the physical broadcast channel, the specified resource block isone of the following resource blocks: a resource block with a minimumindex in the physical broadcast channel; a resource block with a maximumindex in the physical broadcast channel; or a resource block with anyindex between the minimum index and the maximum index in the physicalbroadcast channel.

Optionally, when the first type of resource block belongs to asynchronization signal block, the reference point offset indicationinformation is acquired from the base station based on one of thefollowing information: remaining minimum system information; a masterinformation block in a physical broadcast channel; or downlink controlinformation.

Optionally, when the first type of resource block belongs to a controlresource set, the position information of the first type of resourceblock is acquired based on one of the following information: remainingminimum system information; or a master information block in a physicalbroadcast channel.

Optionally, when the first type of resource block belongs to a controlresource set, the reference point offset indication information isacquired from the base station based on one of the followinginformation: remaining minimum system information; or a masterinformation block in a physical broadcast channel.

Optionally, when the specified resource block is a resource block in thecontrol resource set, the specified resource block is one of thefollowing resource blocks: a resource block with a minimum index in thecontrol resource set; a resource block with a maximum index in thecontrol resource set; or a resource block with any index between theminimum index and the maximum index in the control resource set.

Optionally, the maximum index for the resource block is a maximum indexfor the resource block under a minimum bandwidth.

Optionally, the minimum bandwidth is a smaller one between a systembandwidth and a minimum user equipment bandwidth.

In an embodiment of the present disclosure, a method for allocatingresources is provided, including: in an idle state, after it is detectedthat a UE completes initial cell selection or cell reselection,transmitting to the UE position information of a first type of resourceblock; transmitting to the UE reference point offset indicationinformation, so that the UE calculates a frequency domain position of areference point based on the position information of the first type ofresource block and the reference point offset indication information,wherein the reference point offset indication information includes afrequency domain offset N of the reference point relative to a specifiedresource block, the specified resource block being one of the first typeof resource block, and N being an integer; and transmitting to the UEscheduling information which includes resource allocation information,so that the UE determines a resource block for receiving a physicaldownlink shared channel based on the frequency domain position of thereference point and the resource allocation information included in thescheduling information.

Optionally, the frequency domain offset N is indicated by acorresponding index S, and a bit number of the index S is smaller thanor equal to a bit number of the frequency domain offset N.

Optionally, the reference point is one selected from available referencepoints according to a predetermined rule.

Optionally, the reference point corresponds to a start resource block,and determining a resource block for receiving a physical downlinkshared channel based on the frequency domain position of the referencepoint and resource allocation information included in the schedulinginformation includes: determining the resource block for receiving thephysical downlink shared channel based on the resource allocationinformation included in the scheduling information by taking the startresource block corresponding to the reference point as a start resourceblock for counting resource blocks.

Optionally, the first type of resource block belongs to asynchronization signal block or a control resource set.

Optionally, when the first type of resource block belongs to asynchronization signal block, the specified resource block is aspecified resource block in a synchronization signal or in a physicalbroadcast channel.

Optionally, when the specified resource block is a specified resourceblock in the synchronization signal block, the specified resource blockis one of the following resource blocks: a resource block with a minimumindex in the synchronization signal; a resource block with a maximumindex in the synchronization signal; or a resource block with any indexbetween the minimum index and the maximum index in the synchronizationsignal.

Optionally, when the specified resource block is a specified resourceblock in the physical broadcast channel, the specified resource block isone of the following resource blocks: a resource block with a minimumindex in the physical broadcast channel; a resource block with a maximumindex in the physical broadcast channel; or a resource block with anyindex between the minimum index and the maximum index in the physicalbroadcast channel.

Optionally, when the first type of resource block belongs to asynchronization signal block, the reference point offset indicationinformation is transmitted to the UE based on one of the followinginformation: remaining minimum system information; a master informationblock in a physical broadcast channel; or downlink control information.

Optionally, when the first type of resource block belongs to a controlresource set, the position information of the first type of resourceblock is transmitted to the UE based on one of the followinginformation: remaining minimum system information; or a masterinformation block in a physical broadcast channel.

Optionally, when the first type of resource block belongs to a controlresource set, the reference point offset indication information istransmitted to the UE based on one of the following information:remaining minimum system information; or a master information block in aphysical broadcast channel.

Optionally, when the specified resource block is a resource block in thecontrol resource set, the specified resource block is one of thefollowing resource blocks: a resource block with a minimum index in thecontrol resource set; a resource block with a maximum index in thecontrol resource set; or a resource block with any index between theminimum index and the maximum index in the control resource set.

Optionally, the maximum index for the resource block is a maximum indexfor the resource block under a minimum bandwidth.

Optionally, the minimum bandwidth is a smaller one between a systembandwidth and a minimum user equipment bandwidth.

In an embodiment of the present disclosure, a UE is provided, includinga first acquiring circuitry, a second acquiring circuitry, a calculatingcircuitry and a determining circuitry, wherein the first acquiringcircuitry is configured to: after initial cell selection or cellreselection is completed in an idle state, acquire position informationof a first type of resource block; the second acquiring circuitry isconfigured to acquire reference point offset indication information froma base station, wherein the reference point offset indicationinformation includes a frequency domain offset N of a reference pointrelative to a specified resource block, the specified resource blockbeing one of the first type of resource block, and N being an integer;the calculating circuitry is configured to calculate a frequency domainposition of the reference point based on the position information of thefirst type of resource block and the reference point offset indicationinformation; and the determining circuitry is configured to: whenscheduling information is received from the base station, determine aresource block for receiving a physical downlink shared channel based onthe frequency domain position of the reference point and resourceallocation information included in the scheduling information.

Optionally, the frequency domain offset N is indicated by acorresponding index S, and a bit number of the index S is smaller thanor equal to a bit number of the frequency domain offset N.

Optionally, the reference point corresponds to a start resource block,and the determining circuitry is configured to: determine the resourceblock for receiving the physical downlink shared channel based on theresource allocation information included in the scheduling informationby taking the start resource block corresponding to the reference pointas a start resource block for counting resource blocks.

Optionally, the first type of resource block belongs to asynchronization signal block or a control resource set.

Optionally, when the first type of resource block belongs to asynchronization signal block, the specified resource block is aspecified resource block in a synchronization signal or in a physicalbroadcast channel.

Optionally, when the specified resource block is a specified resourceblock in the synchronization signal block, the specified resource blockis one of the following resource blocks: a resource block with a minimumindex in the synchronization signal; a resource block with a maximumindex in the synchronization signal; or a resource block with any indexbetween the minimum index and the maximum index in the synchronizationsignal.

Optionally, when the specified resource block is a specified resourceblock in the physical broadcast channel, the specified resource block isone of the following resource blocks: a resource block with a minimumindex in the physical broadcast channel; a resource block with a maximumindex in the physical broadcast channel; or a resource block with anyindex between the minimum index and the maximum index in the physicalbroadcast channel.

Optionally, the second acquiring circuitry is configured to: when thefirst type of resource block belongs to a synchronization signal block,acquire the reference point offset indication information from the basestation based on one of the following information: remaining minimumsystem information; a master information block in a physical broadcastchannel; or downlink control information.

Optionally, the first acquiring circuitry is configured to: when thefirst type of resource block belongs to a control resource set, acquirethe position information of the first type of resource block based onone of the following information: remaining minimum system information;or a master information block in a physical broadcast channel.

Optionally, the second acquiring circuitry is configured to: when thefirst type of resource block belongs to a control resource set, acquirethe reference point offset indication information from the base stationbased on one of the following information: remaining minimum systeminformation; or a master information block in a physical broadcastchannel.

Optionally, when the specified resource block is a resource block in thecontrol resource set, the specified resource block is one of thefollowing resource blocks: a resource block with a minimum index in thecontrol resource set; a resource block with a maximum index in thecontrol resource set; or a resource block with any index between theminimum index and the maximum index in the control resource set.

Optionally, the maximum index for the resource block is a maximum indexfor the resource block under a minimum bandwidth.

Optionally, the minimum bandwidth is a smaller one between a systembandwidth and a minimum user equipment bandwidth.

In an embodiment of the present disclosure, a base station is provided,including a first transmitting circuitry, a second transmittingcircuitry and a third transmitting circuitry, wherein the firsttransmitting circuitry is configured to: in an idle state, after it isdetected that a UE completes initial cell selection or cell reselection,transmit to the UE position information of a first type of resourceblock; the second transmitting circuitry is configured to transmit tothe UE reference point offset indication information, so that the UEcalculates a frequency domain position of a reference point based on theposition information of the first type of resource block and thereference point offset indication information, wherein the referencepoint offset indication information includes a frequency domain offset Nof the reference point relative to a specified resource block, thespecified resource block being one of the first type of resource block,and N being an integer; and the third transmitting circuitry isconfigured to transmit to the UE scheduling information which includesresource allocation information, so that the UE determines a resourceblock for receiving a physical downlink shared channel based on thefrequency domain position of the reference point and the resourceallocation information included in the scheduling information.

Optionally, the frequency domain offset N is indicated by acorresponding index S, and a bit number of the index S is smaller thanor equal to a bit number of the frequency domain offset N.

Optionally, the second transmitting circuitry includes a selectingsub-circuitry configured to select one point from available referencepoints according to a predetermined rule as the reference point.

Optionally, the reference point corresponds to a start resource blockwhich is taken as a start resource block for counting resource blockswhen the UE determines the resource block for receiving the physicaldownlink shared channel based on the resource allocation informationincluded in the scheduling information.

Optionally, the first type of resource block belongs to asynchronization signal block or a control resource set.

Optionally, when the first type of resource block belongs to asynchronization signal block, the specified resource block is aspecified resource block in a synchronization signal or in a physicalbroadcast channel.

Optionally, when the specified resource block is a specified resourceblock in the synchronization signal block, the specified resource blockis one of the following resource blocks: a resource block with a minimumindex in the synchronization signal; a resource block with a maximumindex in the synchronization signal; or a resource block with any indexbetween the minimum index and the maximum index in the synchronizationsignal.

Optionally, when the specified resource block is a specified resourceblock in the physical broadcast channel, the specified resource block isone of the following resource blocks: a resource block with a minimumindex in the physical broadcast channel; a resource block with a maximumindex in the physical broadcast channel; or a resource block with anyindex between the minimum index and the maximum index in the physicalbroadcast channel.

Optionally, the second transmitting circuitry is configured to: when thefirst type of resource block belongs to a synchronization signal block,transmit to the UE the reference point offset indication informationbased on one of the following information: remaining minimum systeminformation; a master information block in a physical broadcast channel;or downlink control information.

Optionally, the first transmitting circuitry is configured to: when thefirst type of resource block belongs to a control resource set, transmitto the UE the position information of the first type of resource blockbased on one of the following information: remaining minimum systeminformation; or a master information block in a physical broadcastchannel.

Optionally, the second transmitting circuitry is configured to: when thefirst type of resource block belongs to a control resource set, transmitto the UE the reference point offset indication information based on oneof the following information: remaining minimum system information; or amaster information block in a physical broadcast channel.

Optionally, when the specified resource block is a resource block in thecontrol resource set, the specified resource block is one of thefollowing resource blocks: a resource block with a minimum index in thecontrol resource set; a resource block with a maximum index in thecontrol resource set; or a resource block with any index between theminimum index and the maximum index in the control resource set.

Optionally, the maximum index for the resource block is a maximum indexfor the resource block under a minimum bandwidth.

Optionally, the minimum bandwidth is a smaller one between a systembandwidth and a minimum user equipment bandwidth.

In an embodiment of the present disclosure, a computer readable storagemedium which is applied in a UE and has computer instructions storedtherein is provided, wherein once the computer instructions areexecuted, the above method for allocating resources is performed.

In an embodiment of the present disclosure, a computer readable storagemedium which is applied in a base station and has computer instructionsstored therein is provided, wherein once the computer instructions areexecuted, the above method for allocating resources is performed.

In an embodiment of the present disclosure, a UE is provided, includinga memory and a processor, wherein the memory has computer instructionsstored therein, and once executing the computer instructions, theprocessor performs the above method for allocating resources.

In an embodiment of the present disclosure, a base station is provided,including a memory and a processor, wherein the memory has computerinstructions stored therein, and once executing the computerinstructions, the processor performs the above method for allocatingresources.

Embodiments of the present disclosure may provide following advantages.Reference point offset indication information is obtained from the basestation, where the reference point offset indication informationincludes a frequency domain offset N of a reference point relative to aspecified resource block. A frequency domain position of the referencepoint is calculated based on position information of the first type ofresource block and the reference point offset indication information.The UE can quickly determine a resource block for receiving the physicaldownlink shared channel based on the frequency domain position of thereference point and resource allocation information included in thescheduling information. In this way, resource allocation efficiency of asystem in the idle state may be improved.

Further, the frequency domain offset N is indicated by a correspondingindex S, and a bit number of the index S is smaller than or equal to abit number of the frequency domain offset N. Therefore, when there aremany resource blocks, the number of bits occupied by the frequencydomain offset may be reduced, so that signaling overhead in a resourceallocation process may be saved.

Further, the first type of resource block belongs to the controlresource set. As the CORESET and the PDSCH use a same sub-band duringtransmission, during the determination of a resource block for receivingthe PDSCH, the offset of the resource block for receiving the PDSCHrelative to the reference point is relatively small. Therefore,signaling overhead may be further saved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 schematically illustrates a flow chart of a method for allocatingresources according to an embodiment;

FIG. 2 schematically illustrates a flow chart of a method for allocatingresources according to an embodiment;

FIG. 3 schematically illustrates a structural diagram of a UE accordingto an embodiment; and

FIG. 4 schematically illustrates a structural diagram of a base stationaccording to an embodiment.

DETAILED DESCRIPTION

As described in the background, in an idle state, the base station maynot need to indicate a system bandwidth to the UE, thus the UE cannotknow the system bandwidth of the base station. The base station cannotknow bandwidth capability of the UE in the idle state as well asdifferent UEs have different bandwidth capabilities. As the systembandwidth of a single carrier in a 5G system increases significantly, inthe idle state, existing resource allocation methods cannot adapt to the5G system currently due to low resource allocation efficiency.

In embodiments of the present disclosure, reference point offsetindication information is obtained from a base station, where thereference point offset indication information includes a frequencydomain offset N of a reference point relative to a specified resourceblock. A frequency domain position of the reference point is calculatedbased on position information of the first type of resource block andthe reference point offset indication information. A UE can quicklydetermine a resource block for receiving the physical downlink sharedchannel based on the frequency domain position of the reference pointand resource allocation information included in the schedulinginformation. In this way, resource allocation efficiency of a system inthe idle state may be improved.

In order to clarify the object, solutions and advantages of embodimentsof the present disclosure, embodiments of present disclosure will bedescribed clearly in detail in conjunction with accompanying drawings.

FIG. 1 schematically illustrates a flow chart of a method for allocatingresources according to an embodiment. Referring to FIG. 1, the methodincludes 11, 12, 13 and 14.

In 11, after initial cell selection or cell reselection is completed inan idle state, position information of a first type of resource block isacquired.

In some embodiments, the first type of resource block belongs to asynchronization signal block or a CORESET.

In some embodiments, the first type of resource block belongs to asynchronization signal block. When the UE completes initial cellselection or cell reselection, position information of all resourceblocks in the synchronization signal block can be acquired.

In some embodiments, if the first type of resource block belongs to aCORESET, position information of all resource blocks in the CORESET maybe acquired based on RMSI received from a base station or based on aMaster Information Block (MIB) in a physical broadcast channel, i.e.,acquiring frequency domain resource information of the CORESET from theRMSI or the MIB.

In 12, reference point offset indication information is acquired from abase station.

In some embodiments, the reference point offset indication informationincludes a frequency domain offset N of a reference point relative to aspecified resource block, the specified resource block being one of thefirst type of resource block, and N being an integer.

In some embodiments, if there are a large number of resource blocks, tosave signaling overhead, the base station may indicate the frequencydomain offset N by using a corresponding index S, where the number ofbits of the index S is smaller than or equal to the number of bits ofthe frequency domain offset N. The base station may select one pointfrom available reference points according to a predetermined rule as thereference point. That is to say, a set of available values of N may bepreset, and the base station may indicate to the UE an index of aselected value of N in the set, so that the UE can know which referencepoint is selected by the base station based on the set and the index.

In some embodiments, the offset N is in unit of the number of theresource blocks. For example, one resource block or a preset number ofresource blocks may serve as the unit. The preset number may be 2, 4, 7or the like, and other values may also be possible. When multipleresource blocks serve as the unit, the number of bits occupied by theindex S can be further reduced to further save signaling overhead.

For example, all the resource blocks are offset by N resource blocksrelative to a specified resource block, and N may be 100 values of 0, 1,2, . . . , 98, 99, where the set of available values of N is {0, 10, 20,30, . . . , 80, 90}, and an index set corresponding to the set ofavailable values is {0, 1, 2, 3, . . . , 8, 9}. For example, when thefrequency domain offset N is 3, the corresponding reference point isoffset by 30 resource blocks relative to the specified resource block.

In the 5G system, a synchronization signal and a broadcast channel maybe transmitted in the form of a synchronization signal block, and aPrimary Synchronization Signal (PSS), a Secondary Synchronization Signal(SSS) and a Physical Broadcast Channel (PBCH) are in a SynchronizationSignal Block (SS-Block). The 5G system introduces a function of beamsweeping, and each synchronization signal block can be regarded as aresource of one beam during the beam sweeping process. Multiplesynchronization signal blocks constitute a synchronization signal burst(SS-burst) which can be considered as a piece of relatively concentratedresource that contains multiple beams. Multiple synchronization signalbursts constitute a synchronization signal burst set (SS-burst-set). Thesynchronization signal block is repeatedly transmitted on differentbeams, which is a process of beam sweeping. Through the training of beamsweeping, the UE can perceive on which beam a strongest signal isreceived.

In some embodiments, when types of the first type of resource block aredifferent, the specified resource blocks are also different.

In some embodiments, when the first type of resource block belongs to asynchronization signal block, the specified resource block is aspecified resource block in a synchronization signal or in a physicalbroadcast channel.

In some embodiments, when the specified resource block is a specifiedresource block in the synchronization signal block, the specifiedresource block may be one of the following resource blocks: a resourceblock with a minimum index in the synchronization signal; a resourceblock with a maximum index in the synchronization signal; or a resourceblock with any index between the minimum index and the maximum index inthe synchronization signal.

In some embodiments, when the specified resource block is a specifiedresource block in the physical broadcast channel, the specified resourceblock may be one of the following resource blocks: a resource block witha minimum index in the physical broadcast channel; a resource block witha maximum index in the physical broadcast channel; or a resource blockwith any index between the minimum index and the maximum index in thephysical broadcast channel.

In some embodiments, when the first type of resource block is a resourceblock in the CORESET, the specified resource block may be one of thefollowing resource blocks: a resource block with a minimum index in theCORESET; a resource block with a maximum index in the CORESET; or aresource block with any index between the minimum index and the maximumindex in the CORESET.

In some embodiments, which RB is selected as the specified resourceblock may be determined by the base station according to actualapplication scenarios, resource block designation conditions or adoptedprotocols. Any indexed resource block among the resource blocks in thesynchronization signal block or the resource blocks in the CORESET canserve as the specified resource block, which may effectively improveresource allocation efficiency of the 5G system in the case of largebandwidth.

In some embodiments, when the first type of resource block belongs to asynchronization signal block, the reference point offset indicationinformation may be acquired from the base station based on one of thefollowing information: RMSI; an MIB; or Downlink Control Information(DCI).

In some embodiments, when the first type of resource block belongs to aCORESET, the reference point offset indication information may beacquired based on one of the following information: RMSI; or an MIB.

In 13, a frequency domain position of the reference point is calculatedbased on the position information of the first type of resource blockand the reference point offset indication information.

In some embodiments, the UE calculates the frequency domain position ofthe reference point is calculated based on the position information ofthe first type of resource block and the reference point offsetindication information.

In some embodiments, which resource block in the first type of resourceblock the specified resource block belongs to may be predetermined bythe UE, or may be indicated to the UE by the base station throughsignaling.

In some embodiments, the UE may determine a position of the referencepoint based on a position of the specified resource block and thefrequency domain offset N, and further calculate the frequency domainposition of the reference point.

In 14, when scheduling information is received from the base station, aresource block for receiving a physical downlink shared channel isdetermined based on the frequency domain position of the reference pointand resource allocation information included in the schedulinginformation.

In some embodiments, when the UE receives the scheduling informationfrom the base station, the resource allocation information may beacquired from the scheduling information. The UE may determine, based onthe frequency domain position of the reference point and the resourceallocation information, the resource block for receiving the PDSCH.

In some embodiments, the resource block corresponding to the referencepoint is a start resource block. During the determination of theresource block for receiving the PDSCH, the resource block correspondingto the reference point is used as a base reference point for countingresource blocks, and the counting is started from there. The resourceblock for receiving the PDSCH is determined according to the resourceallocation information included in the scheduling information.

In some embodiments, an index of the resource block corresponding to thereference point may be 0 or other values.

From above, the reference point offset indication information isacquired from the base station, where the reference point offsetindication information includes the frequency domain offset N of thereference point relative to the specified resource block. The frequencydomain position of the reference point is calculated based on theposition information of the first type of resource block and thereference point offset indication information. In the 5G system, asystem bandwidth of a single carrier is greatly increased. In the caseof a large system bandwidth, based on the reference point and theresource allocation information included in the schedule informationreceived from the base station, the UE can quickly determine theresource block for receiving the physical downlink shared channel, sothat the resource allocation efficiency of the system in the idle statemay be improved.

In some embodiments, the base station cannot obtain bandwidth capabilityof the UE in the idle state, and the maximum index for the resourceblock is a maximum index for the resource block under a minimumbandwidth.

In some embodiments, the minimum bandwidth is a smaller one between asystem bandwidth and a minimum UE bandwidth. For example, the minimum UEbandwidth of 5 MHz may correspond to an index 24 of resource block.

In some embodiments, the minimum bandwidth and the corresponding maximumindex for the resource block are related to a frequency bandcorresponding to a cell, such as a frequency range or a frequency band,and may be predefined by an adopted protocol.

Further, the first resource block may be a resource block in theCORESET. As the CORESET and the PDSCH use the same sub-band duringtransmission, the offset of the resource block for receiving the PDSCHrelative to the reference point is relatively small, thereby savingsignaling overhead.

FIG. 2 schematically illustrates a flow chart of a method for allocatingresources according to an embodiment. Referring to FIG. 2, the method isapplied for a base station to allocate resources for a UE, and includes21, 22 and 23.

In 21, in an idle state, after it is detected that a UE completesinitial cell selection or cell reselection, position information of afirst type of resource block is transmitted to the UE.

In some embodiments, the first type of resource block belongs to asynchronization signal block or a CORESET.

In some embodiments, the first type of resource block belongs to asynchronization signal block. When the UE performs initial cellselection or cell reselection, position information of all resourceblocks in the synchronization signal block is transmitted to the UE.After completing the initial cell selection or the cell reselection, theUE can acquire the position information of all the resource blocks inthe synchronization signal block.

In some embodiments, if the first type of resource block belongs to aCORESET, the position information of the first type of resource blockmay be transmitted to the UE through RMSI, or through an MIB in a PBCH.

In some embodiments, in the idle state, the UE needs to monitor thePDCCH, and blindly detect its common search space to acquire DCI. The UEreceives common control information, such as RMSI or paging messages, inthe indicated PDSCH. In the idle state, the PDCCH that the UE needs tomonitor is a common control channel which may use the timing of beams inthe synchronization signal block, or may broadcast information by meansof beam sweeping. Resources of the PDCCH constitute the CORESET.

The MIB carried by the base station in the PBCH may indicate that the UEneeds to monitor a CORESET in the idle state, so that the UE can blindlydetect the PDCCH in the CORESET in the idle state to acquire RMSI or thelike, and the CORESET may be referred to as a first CORESET.

Another CORESET that the UE needs to monitor in the idle state may beindicated in the RMSI, so that the UE may blindly detect the PDCCH inthe CORESET in the idle state to obtain a paging message or the like,and the CORESET may be referred to as a second CORESET.

In 22, reference point offset indication information is transmitted tothe UE.

In some embodiments, the base station may transmit the reference pointoffset indication information to the UE, where the reference pointoffset indication information includes a frequency domain offset N ofthe reference point relative to a specified resource block, thespecified resource block being one of the first type of resource block,and N being an integer.

In some embodiments, when the first type of resource block belongs to asynchronization signal block, the specified resource block may be aspecified resource block in a synchronization signal or in a physicalbroadcast channel.

In some embodiments, when the specified resource block is a specifiedresource block in the synchronization signal block, the specifiedresource block may be one of the following resource blocks: a resourceblock with a minimum index in the synchronization signal; a resourceblock with a maximum index in the synchronization signal; or a resourceblock with any index between the minimum index and the maximum index inthe synchronization signal.

In some embodiments, when the specified resource block is a specifiedresource block in the physical broadcast channel, the specified resourceblock may be one of the following resource blocks: a resource block witha minimum index in the physical broadcast channel; a resource block witha maximum index in the physical broadcast channel; or a resource blockwith any index between the minimum index and the maximum index in thephysical broadcast channel.

In some embodiments, when the specified resource block is a resourceblock in the CORESET, the specified resource block may be one of thefollowing resource blocks: a resource block with a minimum index in theCORESET; a resource block with a maximum index in the CORESET; or aresource block with any index between the minimum index and the maximumindex in the CORESET.

In some embodiments, which RB is selected by the base station as thespecified resource block may be determined according to actualapplication scenarios, resource block designation conditions or adoptedprotocols. Any indexed resource block among the resource blocks in thesynchronization signal block or the resource blocks in the CORESET canserve as the specified resource block, which is relatively flexible andmay effectively improve resource allocation efficiency of the 5G systemin the case of a large bandwidth.

In some embodiments, when types of the first type of resource block aredifferent, ways of the base station transmitting the reference pointoffset indication information to the UE are different accordingly.

In some embodiments, when the first type of resource block belongs to asynchronization signal block, the reference point offset indicationinformation may be transmitted to the UE based on one of the followinginformation: RMSI; an MIB in a PBCH; or DCI.

In some embodiments, when the first type of resource block belongs to aCORESET, the reference point offset indication information may betransmitted to the UE based on one of the following information: RMSI;or an MIB in a PBCH.

In some embodiments, the frequency domain offset N may be indicated byusing a corresponding index S, where the number of bits of the index Sis smaller than or equal to the number of bits of the frequency domainoffset N.

In some embodiments, the base station may select one point fromavailable reference points according to a predetermined rule as thereference point. That is to say, a set of available values of N may bepreset by a protocol, and the base station may indicate to the UE anindex of a selected value of N in the set, so that the UE can know whichreference point is selected by the base station based on the set and theindex, which may save bits occupied by the offset N and further savesignaling overhead.

In some embodiments, after receiving the reference point offsetindication information, the UE may calculate the frequency domainposition of the reference point based on the position information of thefirst type of resource block and the reference point offset indicationinformation.

In 23, scheduling information is transmitted to the UE.

In some embodiments, the scheduling information which includes resourceallocation information may be transmitted to the UE, so that the UEdetermines a resource block for receiving a physical downlink sharedchannel based on the frequency domain position of the reference pointand the resource allocation information included in the schedulinginformation.

By a PDCCH in a first CORESET or a second CORESET, the base stationschedules the UE to receive PDSCH to acquire RMSI or paging messages.Scheduling information in the PDCCH includes resource allocationinformation, so as to inform the UE on which resource blocks to receivethe PDSCH.

In some embodiments, the reference point corresponds to a start resourceblock, and the UE determines the resource block for receiving thephysical downlink shared channel based on the resource allocationinformation included in the scheduling information by taking the startresource block corresponding to the reference point as a start resourceblock for counting resource blocks.

In some embodiments, an index of the resource block corresponding to thereference point may be 0 or other values.

From above, the base station transmits to the UE the positioninformation of the first type of resource block and the reference pointoffset indication information, where the reference point offsetindication information includes the frequency domain offset N of thereference point relative to the specified resource block. The UE maycalculate the frequency domain position of the reference point based onthe position information of the first type of resource block and thereference point offset indication information. In the 5G system, asystem bandwidth of a single carrier is greatly increased. In the caseof a large system bandwidth, based on the reference point and theresource allocation information included in the schedule information,the UE can quickly determine the resource block for receiving thephysical downlink shared channel, so that the resource allocationefficiency of the system in the idle state may be improved.

In some embodiments, the base station cannot obtain bandwidth capabilityof the UE in the idle state, and the maximum index for the resourceblock is a maximum index for the resource block under a minimumbandwidth.

In some embodiments, the minimum bandwidth is a smaller one between asystem bandwidth and a minimum UE bandwidth. For example, the minimum UEbandwidth of 5 MHz may correspond to an index 24 of resource block.

In some embodiments, the minimum bandwidth and the corresponding maximumindex for the resource block are related to a frequency bandcorresponding to a cell, such as a frequency range or a frequency band,and may be predefined by an adopted protocol.

In some embodiments, more details of the method applied for the basestation to allocate resources for the UE can be found in the abovedescriptions of the method for allocating resources as shown in FIG. 1.

To make those skilled in the art better understand and implementsolutions of the present disclosure, embodiments of the presentdisclosure also provide a UE.

FIG. 3 schematically illustrates a structural diagram of a UE accordingto an embodiment. Referring to FIG. 3, the UE 30 includes a firstacquiring circuitry 31, a second acquiring circuitry 32, a calculatingcircuitry 33 and a determining circuitry 34.

The first acquiring circuitry 31 is configured to: after initial cellselection or cell reselection is completed in an idle state, acquireposition information of a first type of resource block.

The second acquiring circuitry 32 is configured to acquire referencepoint offset indication information from a base station, wherein thereference point offset indication information includes a frequencydomain offset N of a reference point relative to a specified resourceblock, the specified resource block being one of the first type ofresource block, and N being an integer.

The calculating circuitry 33 is configured to calculate a frequencydomain position of the reference point based on the position informationof the first type of resource block and the reference point offsetindication information.

The determining circuitry 34 is configured to: when schedulinginformation is received from the base station, determine a resourceblock for receiving a physical downlink shared channel based on thefrequency domain position of the reference point and resource allocationinformation included in the scheduling information.

In some embodiments, the frequency domain offset N is indicated by acorresponding index S, and a bit number of the index S is smaller thanor equal to a bit number of the frequency domain offset N.

In some embodiments, the reference point corresponds to a start resourceblock, and the determining circuitry 34 is configured to: determine theresource block for receiving the physical downlink shared channel basedon the resource allocation information included in the schedulinginformation by taking the start resource block corresponding to thereference point as a start resource block for counting resource blocks.

In some embodiments, the first type of resource block belongs to asynchronization signal block or a control resource set.

In some embodiments, when the first type of resource block belongs to asynchronization signal block, the specified resource block is aspecified resource block in a synchronization signal or in a physicalbroadcast channel.

In some embodiments, when the specified resource block is a specifiedresource block in the synchronization signal block, the specifiedresource block is one of the following resource blocks: a resource blockwith a minimum index in the synchronization signal; a resource blockwith a maximum index in the synchronization signal; or a resource blockwith any index between the minimum index and the maximum index in thesynchronization signal.

In some embodiments, when the specified resource block is a specifiedresource block in the physical broadcast channel, the specified resourceblock is one of the following resource blocks: a resource block with aminimum index in the physical broadcast channel; a resource block with amaximum index in the physical broadcast channel; or a resource blockwith any index between the minimum index and the maximum index in thephysical broadcast channel.

In some embodiments, the second acquiring circuitry 32 is configured to:when the first type of resource block belongs to a synchronizationsignal block, acquire the reference point offset indication informationfrom the base station based on one of the following information:remaining minimum system information; a master information block in aphysical broadcast channel; or downlink control information.

In some embodiments, the first acquiring circuitry 31 is configured to:when the first type of resource block belongs to a control resource set,acquire the position information of the first type of resource blockbased on one of the following information: remaining minimum systeminformation; or a master information block in a physical broadcastchannel.

In some embodiments, the second acquiring circuitry 32 is configured to:when the first type of resource block belongs to a control resource set,acquire the reference point offset indication information from the basestation based on one of the following information: remaining minimumsystem information; or a master information block in a physicalbroadcast channel.

In some embodiments, when the specified resource block is a resourceblock in the control resource set, the specified resource block is oneof the following resource blocks: a resource block with a minimum indexin the control resource set; a resource block with a maximum index inthe control resource set; or a resource block with any index between theminimum index and the maximum index in the control resource set.

As the base station cannot obtain bandwidth capability of the UE in theidle state, in some embodiments, the maximum index for the resourceblock may be a maximum index for the resource block under a minimumbandwidth.

In some embodiments, the minimum bandwidth is a smaller one between asystem bandwidth and a minimum user equipment bandwidth. For example,the minimum UE bandwidth of 5 MHz may correspond to an index 24 ofresource block.

In some embodiments, the minimum bandwidth and the corresponding maximumindex for the resource block are related to a frequency bandcorresponding to a cell, such as a frequency range or a frequency band,and may be predefined by an adopted protocol.

Embodiments of the present disclosure further provide a base station.FIG. 4 schematically illustrates a structural diagram of a base stationaccording to an embodiment. Referring to FIG. 4, the base station 40includes a first transmitting circuitry 41, a second transmittingcircuitry 42 and a third transmitting circuitry 43.

The first transmitting circuitry 41 is configured to: in an idle state,after it is detected that a UE completes initial cell selection or cellreselection, transmit to the UE position information of a first type ofresource block.

The second transmitting circuitry 42 is configured to transmit to the UEreference point offset indication information, so that the UE calculatesa frequency domain position of a reference point based on the positioninformation of the first type of resource block and the reference pointoffset indication information, wherein the reference point offsetindication information includes a frequency domain offset N of thereference point relative to a specified resource block, the specifiedresource block being one of the first type of resource block, and Nbeing an integer.

The third transmitting circuitry 43 is configured to transmit to the UEscheduling information which includes resource allocation information,so that the UE determines a resource block for receiving a physicaldownlink shared channel based on the frequency domain position of thereference point and the resource allocation information included in thescheduling information.

In some embodiments, the frequency domain offset N is indicated by acorresponding index S, and a bit number of the index S is smaller thanor equal to a bit number of the frequency domain offset N.

In some embodiments, the second transmitting circuitry 42 includes aselecting sub-circuitry configured to select one point from availablereference points according to a predetermined rule as the referencepoint.

In some embodiments, the reference point corresponds to a start resourceblock which is taken as a start resource block for counting resourceblocks when the UE determines the resource block for receiving thephysical downlink shared channel based on the resource allocationinformation included in the scheduling information.

In some embodiments, the first type of resource block belongs to asynchronization signal block or a control resource set.

In some embodiments, when the first type of resource block belongs to asynchronization signal block, the specified resource block is aspecified resource block in a synchronization signal or in a physicalbroadcast channel.

In some embodiments, when the specified resource block is a specifiedresource block in the synchronization signal block, the specifiedresource block is one of the following resource blocks: a resource blockwith a minimum index in the synchronization signal; a resource blockwith a maximum index in the synchronization signal; or a resource blockwith any index between the minimum index and the maximum index in thesynchronization signal.

In some embodiments, when the specified resource block is a specifiedresource block in the physical broadcast channel, the specified resourceblock is one of the following resource blocks: a resource block with aminimum index in the physical broadcast channel; a resource block with amaximum index in the physical broadcast channel; or a resource blockwith any index between the minimum index and the maximum index in thephysical broadcast channel.

In some embodiments, the second transmitting circuitry 42 is configuredto: when the first type of resource block belongs to a synchronizationsignal block, transmit to the UE the reference point offset indicationinformation based on one of the following information: remaining minimumsystem information; a master information block in a physical broadcastchannel; or downlink control information.

In some embodiments, the first transmitting circuitry 41 is configuredto: when the first type of resource block belongs to a control resourceset, transmit to the UE the position information of the first type ofresource block based on one of the following information: remainingminimum system information; or a master information block in a physicalbroadcast channel.

In some embodiments, the second transmitting circuitry 42 is configuredto: when the first type of resource block belongs to a control resourceset, transmit to the UE the reference point offset indicationinformation based on one of the following information: remaining minimumsystem information; or a master information block in a physicalbroadcast channel.

In some embodiments, when the specified resource block is a resourceblock in the control resource set, the specified resource block is oneof the following resource blocks: a resource block with a minimum indexin the control resource set; a resource block with a maximum index inthe control resource set; or a resource block with any index between theminimum index and the maximum index in the control resource set.

In some embodiments, the maximum index for the resource block is amaximum index for the resource block under a minimum bandwidth.

In some embodiments, the minimum bandwidth is a smaller one between asystem bandwidth and a minimum user equipment bandwidth. For example,the minimum UE bandwidth of 5 MHz may correspond to an index 24 ofresource block.

In some embodiments, the minimum bandwidth and the corresponding maximumindex for the resource block are related to a frequency bandcorresponding to a cell, such as a frequency range or a frequency band,and may be predefined by an adopted protocol.

In an embodiment of the present disclosure, a computer readable storagemedium which is applied in a UE and has computer instructions storedtherein is provided, wherein once the computer instructions areexecuted, the above method for allocating resources as shown in FIG. 1is performed.

In an embodiment of the present disclosure, a computer readable storagemedium which is applied in a base station and has computer instructionsstored therein is provided, wherein once the computer instructions areexecuted, the method for allocating resources as shown in FIG. 2 isperformed.

In an embodiment of the present disclosure, a UE is provided, includinga memory and a processor, wherein the memory has computer instructionsstored therein, and once executing the computer instructions, theprocessor performs any one of the above methods for allocating resourceswhich are applied in the UE.

In an embodiment of the present disclosure, a base station is provided,including a memory and a processor, wherein the memory has computerinstructions stored therein, and once executing the computerinstructions, the processor performs any one of the above methods forallocating resources which are applied in the base station forallocating resources to a UE.

It should be noted that, PDCCH, PDSCH, CORESET, RMSI, MIB and so on inthe embodiment of the present disclosure are corresponding channels andsignals in a 5G system. With the development of technology, other namesmay be used in protocols in the future. No matter whether names changeor not, corresponding channels and signals having the same functionswith PDCCH, PDSCH, CORESET, RMSI, MIB and so on should fall in the scopeof the embodiments of the present disclosure.

Those skilled in the art can understand that all of or a portion of theprocesses in the method provided in the above embodiments can beimplemented by related hardware with instruction of computer program.The computer program may be stored in a readable storage medium, such asa magnetic disk, an optical disk, a Read-Only Memory (ROM) or a RandomAccess Memory (RAM).

Although the present disclosure has been disclosed above with referenceto preferred embodiments thereof, it should be understood that thedisclosure is presented by way of example only, and not limitation.Those skilled in the art can modify and vary the embodiments withoutdeparting from the spirit and scope of the present disclosure.

What is claimed is:
 1. A method for allocating resources, comprising: after initial cell selection or cell reselection is completed in an idle state, acquiring position information of a first type of resource block; acquiring reference point offset indication information from a base station, wherein the reference point offset indication information comprises a frequency domain offset N of a reference point relative to a specified resource block, the specified resource block being one of the first type of resource block, and N being an integer; calculating a frequency domain position of the reference point based on the position information of the first type of resource block and the reference point offset indication information; and when receiving scheduling information from the base station, determining a resource block for receiving a physical downlink shared channel based on the frequency domain position of the reference point and resource allocation information included in the scheduling information.
 2. The method according to claim 1, wherein the reference point corresponds to a start resource block, and determining a resource block for receiving a physical downlink shared channel based on the frequency domain position of the reference point and resource allocation information included in the scheduling information comprises: determining the resource block for receiving the physical downlink shared channel based on the resource allocation information included in the scheduling information by taking the start resource block corresponding to the reference point as a start resource block for counting resource blocks.
 3. The method according to claim 1, wherein the first type of resource block belongs to a synchronization signal block or a control resource set.
 4. The method according to claim 3, wherein when the first type of resource block belongs to a synchronization signal block, the specified resource block is a specified resource block in a synchronization signal or in a physical broadcast channel.
 5. The method according to claim 4, wherein when the specified resource block is a specified resource block in the synchronization signal block, the specified resource block is one of the following resource blocks: a resource block with a minimum index in the synchronization signal; a resource block with a maximum index in the synchronization signal; or a resource block with any index between the minimum index and the maximum index in the synchronization signal.
 6. The method according to claim 4, wherein when the specified resource block is a specified resource block in the physical broadcast channel, the specified resource block is one of the following resource blocks: a resource block with a minimum index in the physical broadcast channel; a resource block with a maximum index in the physical broadcast channel; or a resource block with any index between the minimum index and the maximum index in the physical broadcast channel.
 7. The method according to claim 3, wherein when the first type of resource block belongs to a synchronization signal block, the reference point offset indication information is acquired from the base station based on one of the following information: remaining minimum system information; a master information block in a physical broadcast channel; or downlink control information.
 8. The method according to claim 3, wherein when the first type of resource block belongs to a control resource set, the reference point offset indication information is acquired from the base station based on one of the following information: remaining minimum system information; or a master information block in a physical broadcast channel.
 9. The method according to claim 3, wherein when the specified resource block is a resource block in the control resource set, the specified resource block is one of the following resource blocks: a resource block with a minimum index in the control resource set; a resource block with a maximum index in the control resource set; or a resource block with any index between the minimum index and the maximum index in the control resource set.
 10. The method according to claim 1, wherein the maximum index for the resource block is a maximum index for the resource block under a minimum bandwidth.
 11. A method for allocating resources, comprising: in an idle state, after it is detected that a User Equipment (UE) completes initial cell selection or cell reselection, transmitting to the UE position information of a first type of resource block; transmitting to the UE reference point offset indication information, so that the UE calculates a frequency domain position of a reference point based on the position information of the first type of resource block and the reference point offset indication information, wherein the reference point offset indication information comprises a frequency domain offset N of the reference point relative to a specified resource block, the specified resource block being one of the first type of resource block, and N being an integer; and transmitting to the UE scheduling information which comprises resource allocation information, so that the UE determines a resource block for receiving a physical downlink shared channel based on the frequency domain position of the reference point and the resource allocation information included in the scheduling information.
 12. The method according to claim 11, wherein the reference point corresponds to a start resource block, and determining a resource block for receiving a physical downlink shared channel based on the frequency domain position of the reference point and resource allocation information included in the scheduling information comprises: determining the resource block for receiving the physical downlink shared channel based on the resource allocation information included in the scheduling information by taking the start resource block corresponding to the reference point as a start resource block for counting resource blocks.
 13. The method according to claim 11, wherein the first type of resource block belongs to a synchronization signal block or a control resource set.
 14. The method according to claim 13, wherein when the first type of resource block belongs to a synchronization signal block, the specified resource block is a specified resource block in a synchronization signal or in a physical broadcast channel.
 15. The method according to claim 14, wherein when the specified resource block is a specified resource block in the synchronization signal block, the specified resource block is one of the following resource blocks: a resource block with a minimum index in the synchronization signal; a resource block with a maximum index in the synchronization signal; or a resource block with any index between the minimum index and the maximum index in the synchronization signal.
 16. The method according to claim 14, wherein when the specified resource block is a specified resource block in the physical broadcast channel, the specified resource block is one of the following resource blocks: a resource block with a minimum index in the physical broadcast channel; a resource block with a maximum index in the physical broadcast channel; or a resource block with any index between the minimum index and the maximum index in the physical broadcast channel.
 17. The method according to claim 13, wherein when the first type of resource block belongs to a synchronization signal block, the reference point offset indication information is transmitted to the UE based on one of the following information: remaining minimum system information; a master information block in a physical broadcast channel; or downlink control information.
 18. The method according to claim 13, wherein when the specified resource block is a resource block in the control resource set, the specified resource block is one of the following resource blocks: a resource block with a minimum index in the control resource set; a resource block with a maximum index in the control resource set; or a resource block with any index between the minimum index and the maximum index in the control resource set.
 19. The method according to claim 11, wherein the maximum index for the resource block is a maximum index for the resource block under a minimum bandwidth.
 20. A computer readable storage medium which is applied in a User Equipment (UE) and has computer instructions stored therein, wherein once the computer instructions are executed, the method according to claim 1 is performed.
 21. A computer readable storage medium which is applied in a base station and has computer instructions stored therein, wherein once the computer instructions are executed, the method according to claim 11 is performed. 